Did you know Tony Jaa was meant to be in Rza’sThe man with the Iron Fists but due to Tom Yum Goong 2( the protector 2) Tony could not make it. uh oh guess what if The man with the Iron Fists does good at the box-office, makes its money… Tony Jaa will be in the sequel. (jumps for joy).
With That news out-of-the-way, A few days ago Tony and his team invited Rza to Thailand to work on his new film Tom Yum Goong 2, Photo above shows them together on set for Tom Yum Goong 2. So we learn a few things here

Tony Jaa will be in The man with the Iron Fists2 pending the first film gets the support it needs.